Stabilizer for double hung windows



July 27, 194s. O A. LARSON 2,446,014

` STABILIZER FOR DOUBLE HNG WINDOWS Filed sept, 21, 1945 Q; INVEN-ToR.

Patented July 27, lig-41g 4 n n '2,44`s,014"` 4 4 4 44sTAIL1zER FOR DOUBLE HUNe WINDOWS lgot Larson, Bronx, N. Y., Vassigner tolnique Balance Co., Inc., New

4 n tion of Illinois York, N.

Y., a corpora# 4 `pplieauonseptemlmr21,1e45,4seriai1-m.617,790,

s l 4 ".110 Claims. 41 4 4 balanced on one sideronly, that a drop4 of the unbalanced side of the sash takes place in spite of the fact `that the counterbalancing device,

regardless of its type, is of suflicient strength .to support the full weight 4of the sash. This is 4due .to the fact that in fitting the sash, at the timeof installation,ancertain amount of clear- This invention relates to a stabilizer for sliding ancemust be` allowed for the free movement of the sash. If this is not done, the slightest `svvellf notwithstanding the ,fact that the window is suspended from either one,` or both sides. i 4 In time, the sash invariably shrinks in size and the clearance becomes excessive,4 leaving the sash veryloose, IIn the case of doublehanging, this causes a familiar chattering sound, when the sashis raised or lowered.` The reason for this is that the sash will not slide evenly, but 4tilts in the frame and causes one corner to stick; as it breaks loose, the corresponding corner on the opposite side sticks, and when this breaks loose, the rst one sticks, etc. yThus the `alternate corners may catch, causing the familiar chattering sound, during the full run Of the sash. 4 4 4 .44, If some provision is made tO hold at least one of the guiding surfaces inalig-nment, this trouble will not occur and, accordingly, it is one ofthe objects of this invention to provide a device to hold at least one or the guiding edges of asash inalignment with the cooperating guiding surface on the window frame and whichwill adjust itself, 4to a considerable extent, to small changes in clearances, and which is provided with means for adjusting the sameto greater changes and without removing the device from the sash or removing the sash from the window frame. n 4 This invention relates more particularly to the provision of means for Ymaking the counterbalancing of sashes at one side practical.4 Attempts have been made toprovide means adapted to counteract the rotational tendencyv exerted by a less .'pressure against the ii/'indovspframe` by 'a pivotal movementof the "spring, but this means is accessible only4 after removal of the sash from theiwi'ndowframe.` i 4" yThe main objectsof this invention are toprof- `videiinproved friction shoe means for counteract-- ing the` rotational tendency of asliding sash icounterbalanced only on one sidefimproved" and readily accessible means for adjusting t'hepresn `su'ral force of the shoejon" the window'lframela simplified stabilizing shoe' formed from `asingle sheet of material', a stabilizing shoe provided with a wide bearing surfacefsupported by" narrow re`4- silien't elements or larms`automat'icallI` compene satin'g for small changes' in window `frame widths, and to otherwise "improve the construction,

mounting andjserVicing of `4`constructions of this 4haratr4 '42.41. 4 4 4 4, 4 4 4 Other objects' of `this invention will `"appear from the following description `made with referience to the drawings, in whichj 4 n Figure 1 is` an indoor face View of a window equipped with'iny improvements; f n l Figure?` is an edge view on 1i`ne`2-1V2, Figurejf, of a sash equipped with my improvedsash stabilizer Figurem is aviewwpartly in 'vertical section on"` line 3`3 'of FigureZ showing asashequipped with my improvedsash stabilizer; and

l'lligure 4 is aviewon' the line 4-4-4 of Figure 3. "lhe woodwork ofthe window opening or the window frame may beof `any suitable constructionand mayinclu'de, as 'shown in Figure 4 side frame members 6,`o1,1`tdo`or guiding strips 1`,"`and indoor guiding. strips`,8, `for lthe lowerinner sash 9, which` together constitute a `slideway "for n the sash.` The upperouter4 sash Il may berigidly secured in the window'fraine or provision may bemade for lowering it as in the usual ldoublef' hung Wn$i04WS4- 4 i "As disclosedin Figure 1, a sash counterbalancing" fdevice |241 indicated diagrammatically by dotted lines, and which may be of anyfapproved construction, is mounted in the left side frame member of the window frameandis attached to the lower left-hand corner of thelowerfsashsas indicated` at I3. This holds the sashin` any of its raised positions Vand tends "to rotate it clockwise in itslowered andin any of itsraised positions, so as 'toinove its upperV right-hand corner into engagement withand to bite `into the bottom `of the slideway on the right side frame member thereby interfering with the raising of the sash, and to" move its lower left-hand corner to press against and bite into the `Slidewayfon the left 3 side frame member thereby resisting lowering of the sash.

For the purpose of counteracting this movement and for holding the sash in alignment with the guideway, I have provided a stabilizer generally indicated by the letter S, Figures 2 and 3, and forthe, purpose of mountingthis stabilizer on the edge foi; the sfashthe upper portion of the right-hand side mem-ber of the sash frame is provided with a groove I4 as indicated in Figures2,3and4.

The stabilizer S is formed'from a` single piece o f sheet material which may be stamped and then shaped into the form 'disfelosed. 'This stabilizer comprises a supporting base and end portion I6 provided with legs l1 and I8 which are -`iilafrdly 'extending flanges being provided with adapted to be secured Onithe edge-face of the side member of the sash by means of nails or 'screws I9 and 20. The stripof metal between the legs I1 and I8 "1t 1 s "to be understood'tliat' I -reserve the igritjto'usch changes.

aligned h oles to receive said bolt with the head df the bolt bearing on the outer face of one of said o war-'diy extending flanges and with the -thread' feind of said bolt threaded into the hole 1in; ft'he 'other of said forwardly extending flanges. 4. A stabilizer comprising an arched resilient 'shoe portion, a forwardly extending flange on each end of said shoe portion and @laterally extending attaching portion on' theforward 'end o f one of said 4flanges, and means providing a `wide bearing vsurfaee fon the `most forwardly `rp'ifojeeti'ng section of said arched shoe portion. y5. A'stabilizer comprising a 'forwardly arched l resilient s'hoe'fpo'rtion, a forwardly extending iflange on feac'h -end ofv said `shoe portion rand a Elaterally extending attaching portion on the 4forwardend of one of said flan'gs, and means 'coop'- 'eratingwith said forwardly extending flanges for tensioning 'said resilient -shoe E`portion, said-tensioning means comprising ai bolt, said forwardly extending "flanges `being provided with aligned 'holes tto Areceive said bolt r'with the rheadgefthe z-bol't bearing en the outerfface of one of said forwardlyext'endingflanges 'and with the end vof 'said blt threaded into l*the 'h'o'le in the I"therof Said forwrdlyfeX-tedg f-anges, :the-Grids 1"y Said aihed :VShOe portion being' v"Sl'Oll'fed for-frecvih'g said `1001i, 6; A slidingfrietion shoeb'rnpis-ingan arcuate resilient portion Aand -an `'attaching 'portion-Textending Slibstlitially ft-angetiall'y with the *Ceiltralfportin of said 'arcuate lresilient p dtion, la cn'neet'ion between; jsaidv 'resilient' and attaching portions, 'finearis on ithefre'e iend of `said iarellate resilient fportionf vextending Aexteriorly 'of isaid r'esilient portion and means'foriadjusting- 's'aidlfatter fmea'ns andf-saidconnetion relatively ltofari'dV from eafh''other to Vary the l`tens`ion fof said resilient portion.

'7. Afslidingiribtion lshoe''Iorfattachment tof the 'o'teriedge Alfa'c'es rof zthe Awalls of "ai 'groove fin-fa sliding rne'nber, comprising san att'aehing -porti'n consisting df-"a Vbaseiplate andl s'paced'lleg fportie'n lfor seating on "and ior fatta'chfmentto -sa'id faces 'of'itlie yfwallls 'of x vsaid groove, a portion Aoni-'smid base projecting "from one i sidethereof ,1' 'ai/.resilient :friction shoe 'connected-'ite said l portion 5* and 'ff arcuate form curved ab outa'nf axis located` on'l said sidefof said `ibase, `and means forgln'iovin'g said portion 'l-id theA f1"ef'eri'd.'E 4tlf-Said lduate 'ifiitin shoe i'toward each' other :totension said l friction shoe'ind projet lits lbrown "beyond'thei otherv `side ofs'aidbase.

8. Aslidng'frictinshe comprisingan-atta'ching :'plate, a iefarwardly extending* element on 'one QridofSaid `p 1ate, a` forwardly arched resilient bearingL elernent'earried-at one of its endsiby mairear r-e 1 1r 1jof said -nrst mentioned f element and' having its f middle portion (lying substantially -in the Vplane-'of saidfpla-te.

"9."A sli'ding friction shoe4 Comprising 'an' attaching platefa rearwardlyextending ele'ment on bearing element carried at one of its ends by .the rear end of said rst mentioned element and having its middle portion lying substantially in the plane of said plate, and means cooperating with said rearwardly extending element and the other end of said arched element for changing the curvature of said arcuate element.

10. A sliding friction shoe comprising an at taching plate, a rearwardly extending element on one end of said plate, a forwardly arched resilient bearingl element carried at one of its ends by the rear end of said rst mentioned element and having its middle portion lying substantially in the plane of -said plate, a forwardly extending member on the other end of said bearing element and a threaded tensioning bolt extending through said rearwardly and forwardly extending element and mem-ber.

ALGOT LARSON.

REFERENCES CITED The following references are of record in the ille of this patent:

UNITED STATES PATENTS 10 Number Name Date 318,736 Holmes May 26, 1885 374,256 Jury Dec. 6, 1887 591,380 ByXbe et a1. Oct. 12, 1'897 1,462,235 Lawrence July 17, 1923 15 1,855,510 Bollier A131226, 1932 1,918,924 OI-Ieir July 18, 1933 

